Bookbinding.



W. B. WAIT.

BOOKBINDING.

APPLICATION FILED MAR.27,1913.

1,090, 3; Patented Mar.17,1914.

ooo o o o o 5] me Wcoz 1 .5- attozmu prairie WILLIAM B. WAIT, OF NEWYORK, N. Y.

BOOKBINDING.

oaaecs.

To all LP/20177, it may concern Be it known that I, WILLIAM B. VVArr, acitizen of the United States, residing at New York, county of New York,State of New York, have invented new and useful Improvements inBookbinding, of which the following is a specification.

This invention relates to a method of binding books and particularly tobooks provided with leaves having embossed characters for point reading.It is well known that books of this kind are somewhat bulky, requiringstrong binding to withstand handling; and it is the object of thisinvention to produce a binding which is durable, and at the same timereduce the weight and cost of the book.

The leaves of the book are arranged in a series of sections, eachsection being fastened to an inner flexible back member or foundation.Each section consists of a number of leaves and the entire book is builtup of a number of successive sections. By fastening each sectionindependently to the flexible back member, the book can be opened at anyplace with the leaves lying flat on to the covers.

The details of the invention are more fully described in the followingspecification and claims; and illustrated in the accompanying drawings;in which:

Figure 1 is a perspective view showing the flexible back member attachedto the leaves. Fig. 2 is a similar view showing the intermediate backattached to the sections. Fig. 3 is a section along the line as a; ofFig. 1. Fig. f is a section along the line 3 3 of Fig. 2. Fig. 5 is asimilar section showing the covers attached to. the book. Fig. 6 is adetail view of a leaf.

The following is a description of the method of binding: A suitablenumber of leaves a are first made up or formed in any number ofsections, three are shown in the drawing. As indicated in Figs. 1 to 5,a section is built up of a plurality of folded sheets each sheetpreferably comprising two leaves. Each leaf or sheet a has a fold b atthe back or binding edge, and the leaves or sheets composing a sectionare placed so that the fold of one sheet is inside of the foldof thenext sheet. Each of these sections is then successively attached bymeans of staples c or otherwise to an inner flexible member orfoundation cl, extending from the top to the bottom of the book, asindi- Specification of Letters Patent.

Application filed March 27, 1913.

inner portions of the covers.

Patented Mar. 1'7, 1914.

Serial No. 757,118.

cated in Fig. 1: and of suflicient width on each side of the back toform a fly or flap 6.

- These flaps are adapted to fasten the flexible member to the innersides of a pair of cov ers 7, best seen in Fig. 5. If desired theflexible member (Z may be in more than one piece, or in other words itcan consist of a series of strips and in this construction, each stripwill provide a marginal flap or fly for fastening to the cover. As asupplemental means of securing the book in the said'covers f, the firstand last sections are provided with a strip of flexible material 9attached to each of said sections. The book composed of the sectionsattached to and held together by the flexible member (Z, is thenattached to an intermediate back it of stiff material as seen in Fig. 2,covered with asuitable fabric of sufficient width to provide fly or flapmargins 2' to be secured to the The book is fastened by a suitablenumber of staples to this intermediate back member. The outer covers fconsist of three parts of any suitable material the middle part or outerback being inflexible and fastened together in any desired way andconnected together so as to provide suitable hinge joints in, on eachside of the middle piece or back of the cover which is flat and rigid.The covers 1 are fastened to the book by means of the said flaps g, eand the flies i all of which are attached tothe covers by gluing orotherwise. For giving a neat appearance and finish the flaps can becovered by any suitable material not shown. As shown in the drawing thestaples 0 extend from the flexible back (Z through each fold of a leafand each longitudinal row of staples thus secures a section to the back.

The inflexible intermediate back 7a can be secured to the flexiblemember or as indicated in the drawing it may be fastened to the sectionsby means of staples. The stiff back 72, holds the leaves in perfectposition with the covers, and at the same time by means of the fliesconstitutes a medium whereby the leaves are firmly secured to the innerportions-of the covers of the book. In other words it prevents outwardmove ment of the leaves when the book is opened, equalizing the strainon the flies and the hinged portions of the covers.

As shown in Fig. 6 the single leaf has a fly and a suitable fold Z)whereby the leaf can be fastened to the flexible member.

7 tions.

I claim:

1. A book comprising covers provided with an inflexible flat back havinghinge joints, a plurality vof signatures positioned between the covers,flexible fly strips secured to the backs of the first and lastsignature, a flexible fly member fastened to all the signatures, anintermediate stiff back secured to'the latter member and the inflexibleback, said intermediate back being provided with fly margins which inconnection with the flies of the strips and the flies of the flexiblemember are fastened to the inner portions of the covers.

2.- A book comprising covers provided with an inflexible flat backhaving hinge Copies of this patent may be obtained for fly mar ins whichin connection with the flies of t e strips and the flies of the flexiblemember are fastened to the inner portionsv of the covers.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

WVILLIAM B. WVAIT.

Witnesses:

CHRISTIAN H. ALMSTAEDT, VILLIAM MILLER.

five cents each, by addressing the Commissioner 0! Patents, Washington,D. O."

